STONE BOAT YARD HIN Decoder
Hull Identification Numbers beginning with VSY were assigned by the US Coast Guard to STONE BOAT YARD of ALAMEDA, CA. The company is recorded as out of business since 2004 — common for older hulls, and useful to know when hunting parts or records. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
VSY
Location
ALAMEDA, CA
In business
since 2002
Status
Out of business (2004)
STONE BOAT YARD hulls (2002–2004) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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STONE BOAT YARD HIN FAQ
What does a STONE BOAT YARD HIN look like?
It starts with the three characters "VSY" — the Manufacturer Identification Code the US Coast Guard assigned to STONE BOAT YARD — followed by a 5-character hull serial and a 4-character date code, 12 characters total. STONE BOAT YARD hulls (2002–2004) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is STONE BOAT YARD still in business?
USCG records list STONE BOAT YARD as out of business since 2004. That's common for older hulls — the HIN still decodes normally, and the out-of-business date helps date the boat and guides parts-hunting toward salvage and owner groups rather than a dealer network.
How do I decode the year on a STONE BOAT YARD HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. STONE BOAT YARD hulls (2002–2004) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in CA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "STONE BOAT YARD HIN Decoder," carwhere.com/hin-decoder/vsy, last verified 2026-06-12.